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/*
* Copyright 2003-2016 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_NOTIFY_HXX
#define MPD_NOTIFY_HXX
#include "thread/Mutex.hxx"
#include "thread/Cond.hxx"
struct notify {
Mutex mutex;
Cond cond;
bool pending;
#ifdef __GLIBC__
constexpr
#endif
notify():pending(false) {}
/**
* Wait for a notification. Return immediately if we have already
* been notified since we last returned from notify_wait().
*/
void Wait();
/**
* Notify the thread. This function never blocks.
*/
void Signal();
/**
* Clears a pending notification.
*/
void Clear();
};
#endif
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